1) Contributions: Tax free in /tax free out â An investor can take out the exact amount of his or her Roth IRA contributions at any time, for any reason without having to pay any tax or penalty â with one big caveat.
Freebase(0.00 / 0 votes)Rate this definition: Stereopsis is the impression of depth that is perceived when a scene is viewed with both eyes by someone with normal binocular vision. Binocular viewing of a scene creates two slightly different images of the scene in the two eyes due to the eyes' different positions on the head.
Stereoscopic depth perception is measured in seconds of arc. In general, you are considered to have gross stereoscopic vision at 3,600 seconds of arc. The smaller the number (some people can achieve stereovision better than 20 seconds of arc), the better your stereopsis.